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[IMPROVEMENT] Batch metadata-table lookups during compaction/clustering plan generation

Status: Open.

#18861 In apache/hudi;

· linliu-code opened on May 27, 2026

[SUPPORT][IMPROVEMENT] Dynamically cap HoodieAppendHandle in-memory buffer at per-task memory ceiling

area:metadata-tableMetadata table relatedMetadata table related

area:performancePerformance optimizationsPerformance optimizations

engine:sparkSpark integrationSpark integration

type:improvementImprovements to existing functionalityImprovements to existing functionality

Status: Open.

#18859 In apache/hudi;

· nsivabalan opened on May 27, 2026

[Vector Index] (Tracking) RaBitQ, read-path pruning, write path, maintenance

type:featureNew features and enhancementsNew features and enhancements

Status: Open.

#18857 In apache/hudi;

· rahil-c opened on May 26, 2026

[Vector Index] End-to-end integration test for vector index bootstrap

type:featureNew features and enhancementsNew features and enhancements

Status: Open.

#18856 In apache/hudi;

· rahil-c opened on May 26, 2026

[Vector Index] CREATE INDEX ... USING vector_index DDL + index definition wiring

type:featureNew features and enhancementsNew features and enhancements

Status: Open.

#18855 In apache/hudi;

· rahil-c opened on May 26, 2026

[Vector Index] Cluster assignment and bootstrap orchestration for MDT writes

type:featureNew features and enhancementsNew features and enhancements

Status: Open.

#18854 In apache/hudi;

· rahil-c opened on May 26, 2026

[Vector Index] KMeans training stage using Spark MLlib

type:featureNew features and enhancementsNew features and enhancements

Status: Open.

#18853 In apache/hudi;

· rahil-c opened on May 26, 2026

[Vector Index] File-group mapping function for cluster-to-file-group routing

type:featureNew features and enhancementsNew features and enhancements

Status: Open.

#18852 In apache/hudi;

· rahil-c opened on May 26, 2026

[Vector Index] Add Avro schema and HoodieMetadataPayload for vector records

type:featureNew features and enhancementsNew features and enhancements

Status: Open.

#18851 In apache/hudi;

· rahil-c opened on May 26, 2026

[Vector Index] Register vector_index_* MDT partition type + config knobs

type:featureNew features and enhancementsNew features and enhancements

Status: Open.

#18850 In apache/hudi;

· rahil-c opened on May 26, 2026

Fix data loss in stream read from earliest

type:bugBug reports and fixesBug reports and fixes

Status: Open.

#18847 In apache/hudi;

· fhan688 opened on May 26, 2026

Block-flush gate in HoodieAppendHandle sizes incoming record instead of buffered Avro record (Spark engine OOM on metadata writes)

Status: Open.

#18844 In apache/hudi;

· nsivabalan opened on May 26, 2026